Not every NAS uses the same architecture, some modules are multi-platform and work on every NAS. But some modules are architecture dependant and you need to know which architecture your NAS is based on. Therefore an overview of the recent NAS models and their related architecture:

Others:
- N4100PRO: Most x86 modules will work, but not all (depending on CPU features needed by module that might not be available)
- N5200(PRO): Some x86 modules might work, but due an outdated firmware/kernel some modules will not work
- N0204/N2200/N2200Plus/N2200EVO: These models are based on ARM which don't have any 3rd party modules